快照隔离事务未能在数据库 '%1' 中启动，因为不允许快照隔离的 ALTER DATABASE 命令已在该事务启动前执行。数据库正在转换到 OFF 状态。您需要更改事务的隔离级别，或者在数据库中重新启用快照隔离。

Snapshot isolation transaction failed to start in database '%1' because the ALTER DATABASE command that disallows snapshot isolation had started before this transaction began. The database is in transition to OFF state. You will either need to change the isolation level of the transaction or re-enable the snapshot isolation in the database.